package lab02.text02;

/**
 * Created by Adminitrator on 2017/10/12.
 */
public class Circle {
    //属性
    double raduis;
    //行为：返回圆的面积和周长
    double area(){
        return 3.14 * raduis * raduis;
    }
    double perimeter(){
        return 2*3.14*raduis;
    }
    public static void main(String[] args) {

    }
}
